[justlurking]

I do not believe that a BSD copyright will discourage SCO.

The code pre-dates SCO's implementation, and indicates that SCO actually copied it from BSD. That's legal under the BSD copyright, until they claimed it as their own.

[justlurking]

More interesting information about SCO's claims, which may have already been posted in another thread:

http://www.opensource.org/sco-vs-ibm.html

It demolishes a number of SCO's claims, point by point. It also provides good information about the origins of Unix.

[Liberal Classic]

If SCO argues the GPL is invalid, it's not such a stretch to argue the same for the BSD license. Likewise, it seems to me that SCO's position is they own all UNIX implementations, not just the UNIX version 6, version 7, and SVR4, up to and including Linux and open source BSD. I believe that SCO is gambling on the ignorance of the judiciary on computer technology, and it's not an unsafe bet.